FAN5665_08 Datasheet, PDF (5/15 Pages) Fairchild Semiconductor – High-Efficiency, Adaptive Charge Pump 5V Boost

Typical Performance Characteristics
Unless otherwise noted, CIN = 2.2µF, COUT = 2.2µF, C1 = C2 = 0.22µF, TA = 25°C.
50.5
50.0
49.5
IOUT=2mA
49.0
48.5
48.0
47.5
2.9
3.4
3.9
4.4
4.9
Input Voltage (V)
Figure 3. Light-Load Switching Frequency
vs. Input Voltage
1.2163
1.2042
IOUT=20mA
1.1921
1.1800
2.9
3.4
3.9
4.4
4.9
Input Voltage (V)
Figure 4. Heavy-Load Switching Frequency
vs. Input Voltage
80
70 ^VIN^{=3.6V, I}OUT^=2mA
60
50
40
30
20
10
0
-40
-15
10
35
60
85
Temperature (°C)
Figure 5. Light-Load Switching Frequency
vs. Temperature
1.34
1.32 ^VIN^{=3.6V, I}OUT^=20mA
1.30
1.28
1.26
1.24
1.22
1.20
1.18
1.16
1.14
-40
-15
10
35
60
85
Temperature (°C)
Figure 6. Heavy-Load Switching Frequency
vs. Temperature
250
200
I_OUT=0mA
150
100
50
0
2.9
3.4
3.9
4.4
4.9
5.4
Input Voltage (V)
Figure 7. Quiescent Current vs. Input Voltage
300
250
I_OUT= 0mA
VIN=3.6V
200
150
100
50
V_IN=5.5V
0
-40
-15
10
35
60
85
Temperature (°C)
Figure 8. Quiescent Current vs. Temperature
© 2007 Fairchild Semiconductor Corporation
FAN5665 • Rev. 1.0.1
5
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